function ImgValOnChange(iImg)
{
    tImgPrevW = iImg.width
    tImgPrevH = iImg.height
    iImg.width = iImg.width * 1.5
    iImg.height = iImg.height * 1.5
    tImgNewLeft = (iImg.width - tImgPrevW) / 2
    iImg.left = iImg.left - tImgNewLeft
    tImgNewTop = (iImg.height - tImgPrevH) / 2
    iImg.top = iImg.top - tImgNewTop
}

function ImgValOutChange(iImg)
{
    tImgPrevW = iImg.width
    tImgPrevH = iImg.height
    iImg.width = iImg.width / 1.5
    iImg.height = iImg.height / 1.5
    tImgNewLeft = (tImgPrevW - iImg.width) / 2
    iImg.left += (tImgNewLeft/2)
    tImgNewTop = (tImgPrevH - iImg.height) / 2
    iImg.top += (tImgNewTop/2)
}

function ImgViewChange(iImg, iSrcStr)
{
    iImg.src = iSrcStr
}